Kubernetes' extensible API has turned it into a de-facto abstraction layer not just for building, deploying and operating cloud-native apps, but also as the control plane for the entire enterprise, to provision and manage cloud resources and complex platform components. This session will be about the journey of Kubernetes and Crossplane at Deutsche Bahn, to provide platform consumers with access to a unified API for deployments, infrastructure provisioning and applications in a manner that is independent from the cloud, addressing compliance and cross-cutting concerns while providing a Kubernetes “native” experience. The journey has not been without challenges, where the platform team has managed technical and functional requirements including an access model in an enterprise environment, user expectations of cloud native infrastructure usage, and issues with excessive API load, shared resources, as well as controllers written by the team and open sourced along the way.
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